Gang-plow



L. GIBBS. GANG PLOW.

2 sheets-sheet 1..

(No Model.)

No. 402,155. Patented Apr. 30, 1889..

2 Sheets-Shet 2; -'L- GIBBS. GANG PLOW (No Model.)

Patented Apr."30, 188.9.

N. rc-rzns. Phoiol-iihogmphur. Walhington. n1;

UNITED STATES PATENT OFFICE.

LE'lVIS GIBBS, OF CANTON, OHIO.

GANG-PLOW.

SPECIFICATION forming part of Letters Patent No. 402,155, dated April 30, 1889.

Application filed August 9, 1889. Serial No. 282,346. (No model.)

To all whom it may concern:

Be it known that I, LEWIS GIBBS, a citizen of the United States, and a resident of Canton, county of Stark, State of Ohio, have invented a new and .useful Improvement in Gang-Flows, of which the following is a full, clear, and exact description, reference being had to the accompanying drawings, making part of this specification.

My invention relates to improvements in gang-plows; and it consists in providing a light and substantial plow-supporting frame, a caster-wheel-supporting frame secured to the rear thereof, guide-wheel supported on cranked axle-shaft composed of two sections, andmeans for rotating said axles independ-. ently of each other and for securing them in a rigid relation for co-operation.

lVit-h these ends in view my invention. consists of certain features of construction and combination of parts, as will be hereinafter described, and pointed out in the claims.

Figure 1 is an isometrical viewof a gang-- plow, illustrating my invention. Fig. 2 is a plan view of same. Fig. 3 is same View of guide-wheel-axle shaft. Fig. 4 is an isometrical view of hand-leverg Fig. 5, same view of coupling-sleeve and locking-rack.

Similar letters of reference indicate corresponding parts in all of the figures of the accompanying drawings.

A represents the plows, B and B the beams, which are secured in parallel relation and spaced apart by braces, as O, and strut D. To the rear portion of beam Bis secured a frame, E, in which the supporting-arm F of caster-wheel G is pivotally secured, and may be adjusted vertically on the shaft a, and secured in adjustment by the set-screwsb. The shaft a. is supported in journal boxes c in the rear portion of frame E. v

The plow-supporting frame is formed of the beams B and B, braces, as O, and a strut, D.

The front portion of said frame is supported upon and pivo'tally secured to the axles H and H by means of the hangers J, said hangers having at their lower ends j ournal-boxes f, in which the axle-shafts H and H are loosely secured, said axles having crank portions 19 and spindles (1, on which the guide-wheels K and K are loosely secured.

A sleeve, as L, is provided, in which the inhe]? ends of the axle-shafts. H and H are placed. That portion of the axle designated as H is secured in said sleeve L by set-screws g, and that portion designated as H is loosely secured therein, as shown in Fig. 3. On the free end of the sleeve L there is provided an outwardly-projected sector, It, having radial rack-teeth t', and an arm, j, having an elongated aperture, 70', with serrations Z.

To the arm j a hand-lever, M, is adjust-ably secured, and to secure said lever in desired adjustment, an upwardly-proj ected sector, 0,

the lower end secured to the beam B, said sector having rack-teeth m, and on said lever M is provided a spring-actuated locking-bolt, n, to engage the teeth m. g 5

On the axle H is secured a hand-lever, N, having a spring-actuated locking-bolt, 0, to engage the rack-teeth '5, by which the axle-shaft H may be secured to the sleeve L and form a means of rotation independently of the axle H, and when thus locked both of the axles H and H may be rocked by the lever M simultaneously in their pivotal. connection with the plow-supporting frame to raise and lower the front en d of the frame, and thereby change the pitch of the plow; or the locking-bolt 0 may be disengaged, and by use of the lever N the axle H may be rocked independently of the axle H, by which movements the cranked portions 19 and spindles q of the axles H and H may be brought into alignment or thrown out of alignment, as shown in Figs. 1 and 2, to drop the guide-wheel K onto the bottom of the furrow.

The operation is as follows: In starting to plow the handlever N is thrown forward to bring the wheel-spindles in alignment, and in which position they remain during the first round, having been adjusted by the lever M to regulate the depth of furrow. After this round the wheel K is dropped by use of the lever N to the bottom of the furrow, as shown in Fig. 1, the locking-bolt engaging the teeth 2'. The axle-shafts are secured together, and,

as hereinbefore stated, may be rocked simul I the lever M, by which the spindles q and.

wheels K K may be brought to a position substantially vertically below the central portion of the axle-shaft.

Having thus fully described the nature and pointed out the object of my invention, What I claim, and desire to secure by Letters Patent, is

1. The combination, with a plow-frame consisting of the suitably-connected beams B B, of a two-part axle, H H, journaled in bearings pivotally secured to said frame, a coupling-sleeve, L, in which the two-part axle is secured, one of the parts of the said two-part axle being free to turn in said sleeve, while the other part of the two-part axle is fixed to said sleeve, a segmental rack, 72, secured to said sleeve, and a locking-lever, N, to engage the said segmental rack and lock the parts of the two-part axle to each other, substantially as set forth.

2. The coupling-sleeve L, having a segmental rack portion, 9, and a laterally-extending arm, J, provided with a vertical aperture and rows of serrations arranged at the sides of said aperture, substantially as set forth.

3. The combination, with aploW-supporting frame, of a supporting axle-shaft composed of two sections, as B and B secured to said frame in journal-boxes and adapted to be rocked in said journals simultaneously or separately, said axles having cranked portions 19 and guide-wheel spindles q, a coupling-sleeve secured to axle H, said sleeve having an outwardly-projected arm, j, to which a hand-lever, M, is secured, by which the axle-shaft H may be rocked in its pivotal connections to the beam B, a rack, O, and means for securing said lever and axle in desired adjustment, substantially as described, and for the purpose set forth.

4. The combination, with a plow-support 4o ing frame composed, essentially, of the beams B B, spaced apart and secured in parallel relation, of a supporting axle-shaft composed of two portions, as H and H, pivotally secured to said frame, said axle portion having crank portions, as p and spindles q, a coupling-sleeve, L, secured to the inner end of said portion H, said sleeve having a rack portion, h, and an outwardly-projected arm, j, a hand-lever, M, secured thereto, a rack, O, and means of adjustably securing said lever to said rack, and a hand-lever, N, secured to axle portion H, the end of said axle loosely secured in sleeve L, and means for locking said lever in engagement with said couplingsleeve, the lever M, to rock the axles H and H simultaneously when said axles are locked in rigid relation to raise and lower the plowsupporting frame, and the lever N, to rock the axle portion H independently of the axle H, to adjust the wheel K to the furrow, substantially as described, and for the purpose set forth.

In testimony whereof Ihave hereunto set my hand this 16th day of July, A. D. 1888.

LEWIS GIBBS.

Witnesses:

W. K. MILLER, CHAs. R. MILLER. 

